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Hot Dip Galvanized Steel Grating- GI Steel Grating

    Bearing bar pitch (mm):  30,34.3,40 & 60


    Cross bar pitch:  100.76.50


    Standards:  YB / T4001.1-2007, BS4592, AS1657

Product Detail

Specification of Steel Grating:

1. The shape of bearing bar: Plain type (may be omitted in the symbol of steel grating), Serrated type and I-Shape type

2. Bearing bar pitches can be 12.5, 15, 20, 30, 30.16, 32.5, 34.3, 40, 60mm, of which 30mm & 40mmare recommended.

3. Cross bar pitches can be 38, 50, 60,100mm, of which 50mm & 100mm are recommended.

4. Surface treatment: Hot-dip ga lvanizing, paint or other anti-corrosive coatings are available, of which hot-dip galvanizing is generally recommended.

5. Material: Q235 in line with GB / T700 steel

6. Tolerance

The allowed deviation of length is + 0 / -5mm, while the allowed deviation of width is +/- 5 mm.

The non-perpendicularity of bearing bar is allowed no more than 10% of width of bearing bar.

Cross bar surface should not surpass bearing bar surface 1mm, beginning & end of cross bar should not surpass the end surfaces of two sides of grating 2mm.

7. Standard:

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